JPH04501805A - Cigarettes with less sidestream smoke (leakage of smoke) - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] name of invention Field of invention for cigarettes with less sidestream smoke (leakage of smoke) The present invention relates to a novel cigarette structure that allows for the reduction of sidestream smoke. Ru.

Background technology Traditionally, cigarettes are made from a paper tube containing a rod-shaped tobacco filler or from a paper roll, with the smoke components removed. It is made up of filters that remove One of the common problems associated with cigarettes is During static combustion, for example, the smoker does not remove the cigarette from his mouth and continue smoking. Sidestream smoke (smoke) that sometimes occurs when a fire is lit and left in an ashtray. There is a certain amount of side leakage. Visible sidestream smoke (smoke leakage) that occurs during static combustion is the main non-smokers near unsmoked cigarettes. For many people, this smoke is irritating and unpleasant.

iyudantaka 1 According to the present invention, a novel cigarette structure that reduces sidestream emissions is provided. provided. In the present invention, a tobacco stick is covered with two different wrapping papers.

Until now, there have been many proposals for producing cigarettes using two or more types of wrapping paper. Includes the following U.S. patents:

U.S. Patent 3.633.589 Kahane 3, 395. 714 Kaha ne3.744. 496 McCarthy et al. 4, 231, 377 C1 1ne et al. 4.505.282 Cogbfl et al. 4, 585. 016 Gr ollimund4, 624.268 Baker et al. One such patent, U.S. Patent No. 3,633.589, is Vacuum paper is used on the outside, and paper that does not allow air to pass through is used on the inside. like this The materials used tend to result in self-extinguishing cigarettes. According to the invention, air If a paper with limited porosity is used on the inside, side stream smoke will be produced without the tendency to self-extinguish. Improved cigarettes are obtained since the occurrence of

From the following description of the characteristics of the inner wrapping paper used in the present invention, the material of the wrapping paper It will be clear that this is different from what is described in the prior art. Features defined in the invention This is necessary for manufacturing cigarettes with less sidestream smoke (leakage of smoke).

i1 1j May Noh and The inner wrapping paper of the present invention is relatively non-porous but somewhat porous and also contains fillers. It is made from a special type of paper that has very little carbon content. This paper is extremely flammable. There is a tendency for the occurrence of side stream smoke (smoke leakage) to be significantly reduced. but voluntarily , this paper tends to produce a noticeable black ash, and the paper also tends to extinguish the paper. Both of these are not desirable.

Surprisingly, if this special wrapping paper is covered with an outer wrapping paper made of conventional cigarette paper, the side It can significantly reduce smoke drift (side leakage of smoke), while no black-gray color can be seen The tendency of cigarettes to extinguish was also found to be reduced. Moreover, this cigarette is flammable The tendency to ignite the substance is reduced.

Therefore, in the present invention, the rod-shaped tobacco portion of the cigarette product is double-wound. vinegar That is, the inside is covered with special paper and the outside is covered with conventional cigarette paper.

This special paper has certain properties as mentioned above.

The paper is relatively non-porous but exhibits some porosity, about 1 to about 10 units, Preferably a Coresta porosity of about 1 to about 5 units. (Colesta porosity is specified in the international standard 1.S, 0.2965). ). This low but distinct porosity significantly reduces sidestream smoke. It is important to is higher than about 5 coresta units or about l coresta units. This is because paper with a porosity below unitary is of little use. Furthermore, below 2 Cigarettes become self-extinguishing.

This special paper also has a low filler content, typically 1 to about 8% by weight, preferably Less than about 5%. This paper typically has a paper weight of about 18 grams per square meter.

In addition to these properties, the inner wrapping paper may have other properties. one that is good to exist The component is a salt of an organic compound, such as citric acid or its salt, and is Adjust baking speed. If such materials are present, about 0.1 to about 2% by weight Good condition.

The inner wrapping paper has pores that allow gas to pass through, and these pores are mechanically and electrostatically or by laser beams.

Occurs when smoking conventionally rolled cigarettes of the same tobacco blend Compared to side flow (side leak), the observed decrease in side flow smoke (side leak of smoke) is remarkable, and Generally about a 30% to 70% reduction.

Conventional cigarette paper is used for the outer wrapping paper. This conventional paper is about 35 to about 65 grams. ram/square meter and containing about 18 to about 40% filler by weight. is preferable. Speed-adjusting additives such as citric acid and its salts are also about 0.2 It may be present in an amount of about 4% by weight.

Cigarettes according to the present invention may be made in any convenient manner, but are generally similar to conventional cigarettes. Using this machine, two sheets of paper are sequentially or preferably simultaneously formed into a bar shape. It is manufactured by rolling it into a tobacco filling body. These two pieces of paper can be used as tobacco sticks if necessary. The filler may be folded together before being coated.

Two millet plates and five presentations As mentioned above, the present invention uses low porosity paper as the inner wrapping paper to form a stick-shaped cigarette. A new paper roll that generates less sidestream smoke (smoke leakage) by being double coated with Provide tobacco structure. Cigarettes are a major commodity and therefore the invention includes industrially adaptable. Modifications are possible within the scope of the invention.

Copy and translation of amendment) Submission (Article 184-8 of the Patent Law) January 1, 1991 (Mon. 29) Day

Claims (6)

[Claims] 1. The rod-shaped tobacco filler is made of a relatively non-porous material with a Coresta porosity of about 1 to about 10 units. The inner wrapping paper is made of cigarette paper and the outer wrapping paper is made of conventional cigarette paper. A cigarette in which the rod-shaped tobacco filling body is covered only with the conventional cigarette paper. A cigarette characterized by a lower tendency to generate sidestream smoke than when compared to a cigarette. 2. Claims that the relatively non-porous paper has a Coresta porosity of about 1 to about 5 units. The cigarette according to item 1. 3. The paper wrapper of claim 2, wherein the inner wrapper has a filler content of about 1 to about 8% by weight. Cigarettes. 4. The inner wrapping paper contains about 0.1 to about 2% by weight of at least one burn rate modifier. The cigarette according to claim 3. 5. The outer wrapper has a weight of about 35 to about 65 grams per square meter and about 18 to about 40 grams per square meter. % filler content and optionally at least one burn rate modifier of about 0.2% by weight. The cigarette according to claim 1, 2, 3 or 4, containing in an amount of from about 4% by weight. . 6. The inner wrapping paper and the outer wrapping paper are simultaneously wound around a rod-shaped packing body to form a covered rod-shaped packing body. 5. The cigarette according to claim 1, 2, 3 or 4, from which cigarettes are made. .